Wireless Bluetooth Speaker Card U Disk Aluminum Alloy Subwoofer Mini Bluetooth Audio Small Steel Cannon Computer

Frequency response range: 100HZ-20KHZ Play format: MP3 Is there a radio function: Yes Product weight: 0.2 Packing list: audio, charging cable, audio cable Display: None Number of speakers: 1 Speaker adjustment method: button Applicable people: general Battery capacity: 350mah Function: card, radio Power supply mode: USB Bluetooth protocol: 4.0 Output power: 3W Connection method: Bluetooth connection Interface type: USB Appearance size: 70*70*50mm Channel: 1 Box material: metal Shell material: metal Operation mode: button Play time: 1 Effective distance: 10 meters Support format: U disk Signal to noise ratio: ≥75dB Expansion storage: 32GB Type: Bluetooth speaker